<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <script>
      function isPromiseLike(value) {
        return (
          value !== null &&
          (typeof value === "object" || typeof value === "function") &&
          typeof value.then === "function"
        );
      }
      const p = new Promise((resolve, reject) => {});
      console.log(isPromiseLike(p));
      console.log(isPromiseLike({}));
    </script>
  </body>
</html>
